mingw: fix use of undefined USR2 signal

src/counters.c

@@ -323,9 +323,10 @@ static void StatsReleaseCtx(void)
  */
 static void *StatsMgmtThread(void *arg)
 {
+#ifndef OS_WIN32
     /* block usr2.  usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     ThreadVars *tv_local = (ThreadVars *)arg;
     uint8_t run = 1;
     struct timespec cond_time;
@@ -410,9 +411,10 @@ static void *StatsMgmtThread(void *arg)
  */
 static void *StatsWakeupThread(void *arg)
 {
+#ifndef OS_WIN32
     /* block usr2.  usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     ThreadVars *tv_local = (ThreadVars *)arg;
     uint8_t run = 1;
     ThreadVars *tv = NULL;

src/detect-engine-loader.c

@@ -564,9 +564,10 @@ static TmEcode DetectLoaderThreadDeinit(ThreadVars *t, void *data)
 
 static TmEcode DetectLoader(ThreadVars *th_v, void *thread_data)
 {
+#ifndef OS_WIN32
     /* block usr2. usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     DetectLoaderThreadData *ftd = (DetectLoaderThreadData *)thread_data;
     BUG_ON(ftd == NULL);
 

src/flow-manager.c

@@ -658,9 +658,10 @@ static TmEcode FlowManagerThreadDeinit(ThreadVars *t, void *data)
  */
 static TmEcode FlowManager(ThreadVars *th_v, void *thread_data)
 {
+#ifndef OS_WIN32
     /* block usr2.  usr1 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     FlowManagerThreadData *ftd = thread_data;
     struct timeval ts;
     uint32_t established_cnt = 0, new_cnt = 0, closing_cnt = 0;
@@ -886,9 +887,10 @@ static TmEcode FlowRecyclerThreadDeinit(ThreadVars *t, void *data)
  */
 static TmEcode FlowRecycler(ThreadVars *th_v, void *thread_data)
 {
+#ifndef OS_WIN32
     /* block usr2. usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     struct timeval ts;
     struct timespec cond_time;
     int flow_update_delay_sec = FLOW_NORMAL_MODE_UPDATE_DELAY_SEC;

src/tm-threads.c

@@ -255,9 +255,10 @@ static int TmThreadTimeoutLoop(ThreadVars *tv, TmSlot *s)
 
 static void *TmThreadsSlotPktAcqLoop(void *td)
 {
+#ifndef OS_WIN32
     /* block usr2.  usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     ThreadVars *tv = (ThreadVars *)td;
     TmSlot *s = tv->tm_slots;
     char run = 1;
@@ -506,9 +507,10 @@ error:
  */
 static void *TmThreadsSlotVar(void *td)
 {
+#ifndef OS_WIN32
     /* block usr2.  usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     ThreadVars *tv = (ThreadVars *)td;
     TmSlot *s = (TmSlot *)tv->tm_slots;
     Packet *p = NULL;
@@ -667,9 +669,10 @@ error:
 
 static void *TmThreadsManagement(void *td)
 {
+#ifndef OS_WIN32
     /* block usr2.  usr2 to be handled by the main thread only */
     UtilSignalBlock(SIGUSR2);
-
+#endif
     ThreadVars *tv = (ThreadVars *)td;
     TmSlot *s = (TmSlot *)tv->tm_slots;
     TmEcode r = TM_ECODE_OK;